Meteorology practice test

Pass mark 75% from twenty randomly chosen questions.


Results

#1. The region in which nearly all weather occurs is called:

#2. Following the passage of a typical cold front, an observer at the surface would expect to experience which of the following conditions:

#3. The atmospheric situation where temperature increases with height is called a(n):

#4. When is advection fog most likely to form?

#5. What is the wind that flows down the side of mountain slopes at night called?

#6. The lapse rate for a dry parcel of air is:

#7. In the UK, away from exposed coasts, airmass thunderstorms are most likely to occur in:

#8. Density will be low when the:

Density varies directly with pressure, ie as pressure increases so does density. Temperature varies inversely with density, ie as temperature decreases, density increases.

#9. What units is pressure measured in?

#10. For smog to form:

#11. You are flying at a constant indicated altitude when you enter a region of higher air pressure. Without making any altimeter changes at all, what would happen to your actual altitude?

With an increase of ambient pressure, the altimeter would indicate that you are at a lower altitude.
The two hints here are that you are at constant INDICATED altitude (from your altimeter, of course) and that the subscale has not been adjusted to the new pressure. Therefore, as the altimeter starts to indicate a lower altitude, adjustments to the flight are made to return to the correct indicated altitude, when in fact you would be climbing,
In reality, this would hardly be noticeable with a realistic change of perhaps a maximum of 2hPa increase in pressure over your route, which would equate to a gain of 60 feet altitude.

#12. A tropical maritime airstream will produce:

#13. Considering the following METAR for Catania-Fontanarossa airport: LICC 231020Z 23007KT 200V280 9999 FEW060 13/04 Q1028=. Which of the following statements is not incorrect?

Location: LICC
Day of month: 23
Time: 10:20 UTC
Wind:  True direction = 230 degrees, Speed: 7 knots
Wind direction is variable between 200 and 280
Visibility: 10 km or more
Clouds: Few (1-2 oktas), at 6000 feet above aerodrome level
Temperature: 13 degrees Celsius
Dewpoint: 04 degrees Celsius
QNH (Sea-level pressure): 1028 hPa

#14. When a wind changes direction from Southerly to South-Westerly, it is said to have:

#15. In the ISA, what is the atmospheric pressure at sea level?

#16. Take a look at this METAR: LMML 221530Z 18007KT -DZ BR OVC004 14/13 Q1003 – What Date and Time this report was issued?

#17. A wind whose direction has changed clockwise is said to have:

#18. The __________ is the boundary in the Earth’s atmosphere between the troposphere and the stratosphere.

#19. If ice forms over the static vent of an aircraft and blocks it during the climb, the altimeter will read:

#20. The Internationl Standard Atmosphere (ISA) is a standard against which to compare the actual atmosphere at any point and time. Taking values at sea level, which of the following values is correct?

finish